Parasitism byEphedrus cerasicola [Hym.: Aphidiidae] developing in different stages ofMyzus persicae [Hom.: Aphididae]
@article{Hgvar1986ParasitismBC, title={Parasitism byEphedrus cerasicola [Hym.: Aphidiidae] developing in different stages ofMyzus persicae [Hom.: Aphididae]}, author={Eline Benestad H{\aa}gvar and Trond Hofsvang}, journal={Entomophaga}, year={1986}, volume={31}, pages={337-346} }
The parasitoidEphedrus cerasicola Stary oviposited in the 4 nymphal instars and in newly moulted apterous adults ofMyzus persicae (Sulzer). Development and reproduction of unparasitized and parasitized aphids at 21°C were compared. Unparasitized aphids developed to adults in 6.5 days and started to reproduce after 7 days. Longevity varied between 7 and 42 days. Net reproductive rate (R0) was 40.7.In contrast to older nymphs, aphids parasitized in the 1 st instar almost never reached the adult…
12 Citations
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Host stage preference, juvenile mortality and functional response of the walnutaphid parasitoid wasp, Trioxys pallidus were studied in laboratory constant conditions.
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Nymph production of the green peach aphid Myzus persicae decreased significantly under crowded conditions in leaf cages and on whole plants and mean daily nymph production was also slightly decreased.